I recently upgraded from 12.10 to 13.10
I created some custom launchers for programs, but they do not show up in the ubuntu dash.
.desktop files are stored in: ~/.local/share/applications
I also tried placing them in /usr/share/applications but this also doesn't work.
# cat IntelliJ.desktop
Also, when I double click on the icon, I get an error: 'There was an error launching the application.'
edit: I solved it, I just copied my /projects folder from the backup location to my home folder, and forgot to make the *.sh files executable.
chmod +x did the trick.